修复JSON反序列化时，引用字段类型的自定义JsonDeserializer无效

hutool-json/src/test/java/Issue2555Test.java

@@ -0,0 +1,54 @@
+import cn.hutool.json.JSON;
+import cn.hutool.json.JSONObject;
+import cn.hutool.json.JSONUtil;
+import cn.hutool.json.serialize.JSONDeserializer;
+import cn.hutool.json.serialize.JSONObjectSerializer;
+import lombok.Data;
+import org.junit.Assert;
+import org.junit.Test;
+
+public class Issue2555Test {
+
+	@Test
+	public void serAndDeserTest(){
+		JSONUtil.putSerializer(MyType.class, new MySerializer());
+		JSONUtil.putDeserializer(MyType.class, new MyDeserializer());
+
+		final SimpleObj simpleObj = new SimpleObj();
+		final MyType child = new MyType();
+		child.setAddress("addrValue1");
+		simpleObj.setMyType(child);
+
+		final String json = JSONUtil.toJsonStr(simpleObj);
+		Assert.assertEquals("{\"myType\":{\"addr\":\"addrValue1\"}}", json);
+
+		//MyDeserializer不会被调用
+		final SimpleObj simpleObj2 = JSONUtil.toBean(json, SimpleObj.class);
+		Assert.assertEquals("addrValue1", simpleObj2.getMyType().getAddress());
+	}
+
+	@Data
+	public static class MyType {
+		private String address;
+	}
+	@Data
+	public static class SimpleObj {
+		private MyType myType;
+	}
+
+	public static class MySerializer implements JSONObjectSerializer<MyType> {
+		@Override
+		public void serialize(JSONObject json, MyType bean) {
+			json.set("addr", bean.getAddress());
+		}
+	}
+
+	public static class MyDeserializer implements JSONDeserializer<MyType>{
+		@Override
+		public MyType deserialize(JSON json) {
+			final MyType myType = new MyType();
+			myType.setAddress(((JSONObject)json).getStr("addr"));
+			return myType;
+		}
+	}
+}